Fix an issue where the mixer lagging too much behind CEF would cause us to display...

[nageru] / ref_counted_frame.h

diff --git a/ref_counted_frame.h b/ref_counted_frame.h
index 881d0d5015c8f5f0738982ba9096eb797edc6b99..cb055f9e3a62ea49bf8d8a963d2aa8b07ea87ef5 100644 (file)
--- a/ref_counted_frame.h
+++ b/ref_counted_frame.h
@@ -23,4 +23,31 @@ public:
                : RefCountedFrameBase(new bmusb::FrameAllocator::Frame(frame), release_refcounted_frame) {}
 };
 
+// Similar to RefCountedFrame, but as unique_ptr instead of shared_ptr.
+
+struct Unique_frame_deleter {
+       void operator() (bmusb::FrameAllocator::Frame *frame) const {
+               release_refcounted_frame(frame);
+       }
+};
+
+typedef std::unique_ptr<bmusb::FrameAllocator::Frame, Unique_frame_deleter>
+       UniqueFrameBase;
+
+class UniqueFrame : public UniqueFrameBase {
+public:
+       UniqueFrame() {}
+
+       UniqueFrame(const bmusb::FrameAllocator::Frame &frame)
+               : UniqueFrameBase(new bmusb::FrameAllocator::Frame(frame)) {}
+
+       bmusb::FrameAllocator::Frame get_and_release()
+       {
+               bmusb::FrameAllocator::Frame *ptr = release();
+               bmusb::FrameAllocator::Frame frame = *ptr;
+               delete ptr;
+               return frame;
+       }
+};
+
 #endif  // !defined(_REF_COUNTED_FRAME_H)